Lapsed IAC Membership Message 

On Tuesday April 16th, we reactivated an old server. Because it had been offline for a long time, it assumed that all memberships had lapsed while it was "asleep" and sent emails to that effect.

Rest assured that your membership did not actually expire on the 16th. We sincerely apologize for any confusion and inconvenience.

The 2024 contest season has begun! 

Every year the IAC sanctions 35 to 40 contests in the United States and Canada. Each contest is hosted by a local IAC chapter. 
See the details of upcoming contests scheduled in 2024: and find the results for each contest: 

Judges Training

Interested in becoming an aerobatic Judge? Online Judges' school is coming up April 20, 2024. 
See details:


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About the IAC

While we are known mostly as the "competition aerobatics" people, the IAC was organized in 1970 for all forms of aerobatic flight.  Our articles state that we have organized for educational, scientific, and charitable purposes related to aerobatics:  we 1) cooperate and assist governmental agencies in the development of programs relating to aerobatic activities, 2) encourage, aid, and engage in research and education for the improvement of aviation safety through a better understanding of the art of aerobatics, and 3) promote and encourage aerobatic education and competition on a national and international level.

The IAC has a commitment to safety and excellence in every aspect of our sport with fair play and sportsmanship at the forefront of our endeavors.

Although often referred to as a "division" or "community" of the Experimental Aircraft Association, Inc. (EAA), the IAC is an independent non-profit organization. All IAC members are also EAA members. Membership in EAA is open to all who are interested in aviation.

The IAC offers sanction for regional competitions, provides judge training and certification, stewards the contest rule book, and hosts the US National Aerobatic Championships.  Our rule book is maintained to provide a fair competition environment for aerobatic pilots of all skill levels and aerobatic aircraft of all types.

On an international level, the IAC is a member of the National Aeronautic Association and is responsible for the administration, management, and promotion of the sport of aerobatics in the United States under the applicable regulations of the Federation Aeronautique Internationale (FAI), headquartered in Lausanne, Switzerland. The FAI is the world governing body for all sport aviation competition and record attempts. The IAC represents the United States at meetings of the FAI Aerobatic Commission (CIVA) which establishes rules worldwide for aerobatic competitions.  The IAC is responsible, through our agreement with the NAA, for fielding teams to represent the United States in international aerobatic competition.

The IAC is led by a Board of Directors including four officers (President, Vice President, Treasurer, Secretary) and 11 Directors, including representatives from EAA and NAA.